1R8I

Crystal structure of TraC


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.263 
  • R-Value Observed: 0.263 

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This is version 1.3 of the entry. See complete history


Literature

Structural and functional characterization of the VirB5 protein from the type IV secretion system encoded by the conjugative plasmid pKM101

Yeo, H.-J.Yuan, Q.Beck, M.R.Baron, C.Waksman, G.

(2003) Proc Natl Acad Sci U S A 100: 15947-15952

  • DOI: 10.1073/pnas.2535211100
  • Primary Citation of Related Structures:  
    1R8I

  • PubMed Abstract: 
  • Type IV secretion systems mediate intercellular transfer of macro-molecules via a mechanism ancestrally related to that of bacterial conjugation machineries. TraC of the IncN plasmid pKM101 belongs to the VirB5 family of proteins, an essential compon ...

    Type IV secretion systems mediate intercellular transfer of macro-molecules via a mechanism ancestrally related to that of bacterial conjugation machineries. TraC of the IncN plasmid pKM101 belongs to the VirB5 family of proteins, an essential component of most type IV secretion systems. Here, we present the structure of TraC. VirB5/TraC is a single domain protein, which consists of a three helix bundle and a loose globular appendage. Structure-based site-directed mutagenesis followed by functional studies indicates that VirB5 proteins participate in protein-protein interactions important for pilus assembly and function.


    Organizational Affiliation

    Institute of Structural Molecular Biology, Birkbeck College, Malet Street, London WC1E 7HX, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TraCA213Escherichia coliMutation(s): 0 
Gene Names: trac
Find proteins for Q9L6G5 (Escherichia coli)
Explore Q9L6G5 
Go to UniProtKB:  Q9L6G5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.263 
  • R-Value Observed: 0.263 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 144.015α = 90
b = 144.015β = 90
c = 91.88γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-06
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-09-28
    Changes: Structure summary